Answer: a metal and a nonmental and a mental and a polyatomic anion :)
Explanation: i prayed ~.~
What are ionic compounds
These are compounds that comprises of ions and they are bond together by ionic bonds or better still electro static forces.
In summary they are composed of two types of ion
1. Positively charges ions also called cations
2. Negatively charges ions also called anions
Properties Shared by Ionic Compounds
1. High melting points and high boiling points. ...
2. higher enthalpies of fusion and vaporization than molecular compounds
3. They conduct electricity when they are dissolved in water. ...
3 .They're good insulators.
From the given options the corrections ones are
1 . A polyatomic cation and a metal
2. A metal and a polyatomic anion
3. A metal and a nonmetal
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